1210311201213 has 24 divisors (see below), whose sum is σ = 1777839993696. Its totient is φ = 793220925600.

The previous prime is 1210311201179. The next prime is 1210311201263. The reversal of 1210311201213 is 3121021130121.

1210311201213 is a `hidden beast` number, since 1 + 210 + 311 + 20 + 121 + 3 = 666.

It is not a de Polignac number, because 1210311201213 - 2⁸ = 1210311200957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210311201263) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 434578 + ... + 1615388.

It is an arithmetic number, because the mean of its divisors is an integer number (74076666404).

Almost surely, 2^{1210311201213} is an apocalyptic number.

It is an amenable number.

1210311201213 is a deficient number, since it is larger than the sum of its proper divisors (567528792483).

1210311201213 is a wasteful number, since it uses less digits than its factorization.

1210311201213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1182745 (or 1182742 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1210311201213 its reverse (3121021130121), we get a palindrome (4331332331334).

The spelling of 1210311201213 in words is "one trillion, two hundred ten billion, three hundred eleven million, two hundred one thousand, two hundred thirteen".